Enjoying his 15 minutes of fame, he arrived at London club Mahiki - a favoured haunt of young royals - on Monday night in a carriage pulled by two glossy steeds and driven by two top-hatted coachmen.

Dressed in tight white trousers tucked into black boots, a close-fitting jacket and a foppish white shirt, he posed for the cameras as he stepped from the carriage.

Well refreshed: empty bottles in Conway's carriage

Old Harrovian Henry - who styles himself "Queen Sloane" - organises party nights at Mahiki and has previously been spotted in tight leather trousers, furs or even white glittery stars as he welcomes his guests.

He first came into the public eye when it was revealed that his younger brother Freddie received £50,000 of taxpayers' money from his MP father as an assistant in the Commons while a fulltime university student in Newcastle.

Later, the MP for Old Bexley and Sidcup in Kent said he would stand down at the next General Election. But he insisted he was no "crook".

Also at Mahiki last night was Paris Hilton, who was deluged by popping flashbulbs as she arrived with boyfriend rock guitarist Benji Madden - but must have been hugely disappointed that she didn't think of the carriage thing first.

When it comes to ridiculous, flamboyant gestures designed to attract attention, the 27-year-old American heiress is the Queen Bee to his Queen Sloane.

More to the point, even Paris must have worked out that if she had stuck to horsedrawn carriages back home in Los Angeles she might have avoided that drink-drive conviction and the inconvenience of her spell in jail last year.

However, the £70,000 appearance fee she received would surely have covered that embarrassment and bought her and Good Charlotte rocker boyfriend Benji Madden a few drinks when they returned to the Hilton at 3am - having only arrived at 1.20am.